Home / 1,853,772.60-2,780,658.90-1,286,902.20

Finding the Fourth Proportional to 1,853,772.60, 2,780,658.90 and 1,286,902.20

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Solution

The fourth proportional to 1,853,772.60, 2,780,658.90 and 1,286,902.20 is: 1,930,353.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,853,772.60 : 2,780,658.90 = 1,286,902.20 : x
  2. Step 2: Convert to fraction form
    1,853,772.60/2,780,658.90 = 1,286,902.20/x
  3. Step 3: Cross multiply
    1,853,772.60x = 2,780,658.90 × 1,286,902.20
  4. Step 4: Simplify right side
    1,853,772.60x = 3,578,436,055,859.58
  5. Step 5: Solve for x
    x = 3,578,436,055,859.58/1,853,772.60
  6. Step 6: Final answer
    x = 1,930,353.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.